EP2689987B1 - Servolenkvorrichtung - Google Patents

Servolenkvorrichtung Download PDF

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Publication number
EP2689987B1
EP2689987B1 EP12760118.5A EP12760118A EP2689987B1 EP 2689987 B1 EP2689987 B1 EP 2689987B1 EP 12760118 A EP12760118 A EP 12760118A EP 2689987 B1 EP2689987 B1 EP 2689987B1
Authority
EP
European Patent Office
Prior art keywords
bearing
circumferential surface
gear case
ring
worm shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP12760118.5A
Other languages
English (en)
French (fr)
Other versions
EP2689987A4 (de
EP2689987A1 (de
Inventor
Shinraku Yoshikawa
Katsumi SHIMODA
Tetsuro SHIMIZU
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KYB Corp
Original Assignee
KYB Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by KYB Corp filed Critical KYB Corp
Publication of EP2689987A1 publication Critical patent/EP2689987A1/de
Publication of EP2689987A4 publication Critical patent/EP2689987A4/de
Application granted granted Critical
Publication of EP2689987B1 publication Critical patent/EP2689987B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
    • F16C27/04—Ball or roller bearings, e.g. with resilient rolling bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
    • B62D5/0442—Conversion of rotational into longitudinal movement
    • B62D5/0454—Worm gears
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
    • B62D5/0409—Electric motor acting on the steering column
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
    • F16C23/06—Ball or roller bearings
    • F16C23/08—Ball or roller bearings self-adjusting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/22—Toothed members; Worms for transmissions with crossing shafts, especially worms, worm-gears
    • F16H55/24—Special devices for taking up backlash
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
    • F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
    • F16H1/16—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • F16H2057/0213—Support of worm gear shafts

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Power Steering Mechanism (AREA)
  • Gear Transmission (AREA)
  • Support Of The Bearing (AREA)

Claims (6)

  1. Servolenkvorrichtung (100), die eine Lenkkraft unterstützt, die auf ein Lenkrad durch einen Fahrer ausgeübt wird, umfassend:
    ein Schneckenrad (1), das an einer mit dem Lenkrad verbundenen Lenkwelle angebracht ist;
    eine Schneckenwelle (2), die mit dem Schneckenrad (1) in Eingriff steht und durch Antrieb eines Elektromotors (7) gedreht wird;
    ein erstes Lager (4), das eine Basis-Endseite der Schneckenwelle (2) drehbar lagert;
    ein zweites Lager (11), das eine Spitzen-Endseite der Schneckenwelle (2) drehbar lagert;
    ein Getriebegehäuse (3), das die Schneckenwelle (2) aufnimmt;
    ein Vorspannelement (12), das durch Ausüben einer Vorspannkraft auf eine äußere Umfangsfläche des zweiten Lagers (11) die Schneckenwelle (2) in Richtung auf das Schneckenrad (1) vorspannt; und
    ein elastisches Element (10), das zwischen einer inneren Umfangsfläche (3b) des Getriebegehäuses (3) und der äußeren Umfangsfläche des zweiten Lagers (11) angeordnet ist,
    wobei die innere Umfangsfläche (3b) des Getriebegehäuses (3), die die äußere Umfangsfläche des zweiten Lagers (11) umgibt, derart ausgebildet ist, dass sich das zweite Lager (11) durch die Vorspannkraft des Vorspannelements (12) in Richtung auf das Schneckenrad (1) zubewegen kann,
    dadurch gekennzeichnet, dass
    die innere Umfangsfläche (3b) des Getriebegehäuses (3) mit einer ringförmigen Nut (32) zur Aufnahme des elastischen Elements (10) versehen ist, und ein Mittelpunkt (Y) der ringförmigen Nut (32) so angeordnet ist, dass er von einer Mittelachse (X) der Schneckenwelle (2) in Richtung der Seite des Schneckenrades (1) versetzt angeordnet ist, wenn das erste Lager (4) und das zweite Lager (11) sich in einem koaxialen Zustand befinden.
  2. Servolenkvorrichtung (100) nach Anspruch 1, wobei das elastische Element (10) einen ringförmigen ersten elastischen Abschnitt (10a), der zwischen einem Bodenabschnitt des Getriebegehäuses (3) und einem Bodenabschnitt des zweiten Lagers (11) angeordnet ist, und einem ringartigen zweiten elastischen Abschnitt (10b) umfasst, der zwischen der inneren Umfangsfläche (3b) des Getriebegehäuses (3) und der äußeren Umfangsfläche des zweiten Lagers (11) angeordnet ist.
  3. Servolenkvorrichtung (100) nach Anspruch 1, wobei die innere Umfangsfläche (3b) des Getriebegehäuses (3) aus einer ersten halbbogenförmigen Oberfläche (20), einem Paar flacher Oberflächen (21), die sich parallel zur Vorspannrichtung des Vorspannelements (12) erstrecken, und einer zweiten halbbogenförmigen Oberfläche (22) besteht, die bezüglich der ersten halbbogenförmigen Oberfläche (20) durch die flachen Oberflächen (21) symmetrisch ist, und
    wobei der Mittelpunkt (Y) der ringartigen Nut (32) im Wesentlichen gleich dem Mittelpunkt der zweiten halbbogenförmigen Oberfläche (22) ist.
  4. Servolenkvorrichtung (100) nach Anspruch 2, wobei das zweite Lager (11) durch die Vorspannkraft des Vorspannelements (12) und des zweiten elastischen Teils (10b), das auf dessen äußere Umfangsfläche aufgebracht ist, in Richtung des Schneckenrades (1) vorgespannt (biased) ist.
  5. Servolenkvorrichtung (100) nach Anspruch 1, wobei die Tiefenabmessung der ringartigen Nut (32) im Vergleich mit der Dicke des elastischen Elements (10) kleiner ist.
  6. Servolenkvorrichtung (100) nach Anspruch 1, wobei, wenn sich das zweite Lager (11) im koaxialen Zustand mit dem ersten Lager (4) befindet, ein Zwischenraum zwischen der äußeren Umfangsfläche des zweiten Lagers (11) und einer inneren Umfangsfläche des elastischen Elements (10) in einer Bewegungsrichtung des zweiten Lagers (11) in Richtung des Schneckenrades (1) durch die Vorspannkraft des Vorspannelements (12) auftritt.
EP12760118.5A 2011-03-22 2012-02-14 Servolenkvorrichtung Not-in-force EP2689987B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011062369A JP6130988B2 (ja) 2011-03-22 2011-03-22 パワーステアリング装置
PCT/JP2012/053359 WO2012127935A1 (ja) 2011-03-22 2012-02-14 パワーステアリング装置

Publications (3)

Publication Number Publication Date
EP2689987A1 EP2689987A1 (de) 2014-01-29
EP2689987A4 EP2689987A4 (de) 2015-07-22
EP2689987B1 true EP2689987B1 (de) 2017-04-19

Family

ID=46879099

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12760118.5A Not-in-force EP2689987B1 (de) 2011-03-22 2012-02-14 Servolenkvorrichtung

Country Status (6)

Country Link
US (1) US9033096B2 (de)
EP (1) EP2689987B1 (de)
JP (1) JP6130988B2 (de)
CN (1) CN103442965B (de)
ES (1) ES2625610T3 (de)
WO (1) WO2012127935A1 (de)

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JP5551642B2 (ja) * 2011-03-22 2014-07-16 カヤバ工業株式会社 パワーステアリング装置
DE102012100492A1 (de) * 2012-01-23 2013-07-25 Zf Lenksysteme Gmbh Servogetriebe für eine hilfskraftlenkung
JP5778123B2 (ja) * 2012-12-25 2015-09-16 日立オートモティブシステムズステアリング株式会社 パワーステアリング装置及びバックラッシュ調整機構
KR101477906B1 (ko) * 2013-05-28 2014-12-30 주식회사 만도 전동식 동력 보조 조향장치의 감속기
KR101477907B1 (ko) * 2013-05-29 2014-12-30 주식회사 만도 전동식 동력 보조 조향장치의 감속기
KR20150017459A (ko) * 2013-08-07 2015-02-17 현대모비스 주식회사 안티 래틀 장치
JP6129774B2 (ja) * 2014-03-24 2017-05-17 株式会社ショーワ パワーステアリング装置
JP6118750B2 (ja) * 2014-03-26 2017-04-19 株式会社ショーワ ウォーム付勢構造体
DE102014107073A1 (de) * 2014-05-20 2015-11-26 Robert Bosch Automotive Steering Gmbh Lenkgetriebe
JP6161816B2 (ja) * 2014-06-27 2017-07-12 三菱電機株式会社 一体型電動パワーステアリング装置、及びその製造方法
JP6108358B2 (ja) * 2014-07-23 2017-04-05 株式会社ショーワ ウォーム付勢構造体
JP6458982B2 (ja) * 2014-09-08 2019-01-30 株式会社ジェイテクト ウォーム減速機
JP2016112955A (ja) * 2014-12-12 2016-06-23 日立オートモティブシステムズステアリング株式会社 パワーステアリング装置
JP6167198B1 (ja) 2016-03-25 2017-07-19 Ｋｙｂ株式会社 電動パワーステアリング装置及び電動パワーステアリング装置の製造方法
DE102016211706B3 (de) * 2016-06-29 2017-12-14 Ford Global Technologies, Llc Getriebeeinheit für ein Kraftfahrzeug
DE102016211694B3 (de) * 2016-06-29 2017-10-05 Ford Global Technologies, Llc Getriebeeinheit für ein Kraftfahrzeug
CN106194621A (zh) * 2016-08-17 2016-12-07 王玉多 惯性推动杠杆发电
JP6876249B2 (ja) * 2017-04-19 2021-05-26 株式会社ジェイテクト ウォーム減速機および電動パワーステアリング装置
JP6975379B2 (ja) * 2017-08-07 2021-12-01 株式会社ジェイテクト ウォーム減速機
JP6875962B2 (ja) * 2017-08-31 2021-05-26 Ｋｙｂ株式会社 パワーステアリング装置
US20190101206A1 (en) * 2017-09-29 2019-04-04 Kinematics, Llc Integrated slew drive
KR101993295B1 (ko) * 2017-12-19 2019-06-26 주식회사 만도 전동식 동력 보조 조향장치의 감속기
KR20190105931A (ko) * 2018-03-07 2019-09-18 삼성전자주식회사 기어 소음 저감장치 및 이를 포함하는 전자장치
JP7280763B2 (ja) * 2019-06-27 2023-05-24 Ｋｙｂ株式会社 ウォームシャフト、ウォーム減速機及びウォームシャフトの製造方法

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Also Published As

Publication number Publication date
CN103442965B (zh) 2016-06-15
ES2625610T3 (es) 2017-07-20
WO2012127935A1 (ja) 2012-09-27
JP6130988B2 (ja) 2017-05-17
US9033096B2 (en) 2015-05-19
US20140008142A1 (en) 2014-01-09
EP2689987A4 (de) 2015-07-22
CN103442965A (zh) 2013-12-11
JP2012197029A (ja) 2012-10-18
EP2689987A1 (de) 2014-01-29

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